John Orlin Kirkwold

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Champlin, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Seal arrangement for filter element; filter element assembly; and,...
- Patent number 11,117,085
- Issue date Sep 14, 2021
- Donaldson Company, Inc.
- Benny Kevin Nelson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Seal arrangement for filter element; filter element assembly; and,...
- Patent number 10,507,423
- Issue date Dec 17, 2019
- Donaldson Company, Inc.
- Benny Kevin Nelson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Seal arrangement for filter element; filter element assembly; and,...
- Patent number 9,718,021
- Issue date Aug 1, 2017
- Donaldson Company, Inc.
- Benny Kevin Nelson
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Seal arrangement for filter element; filter element assembly; and,...
- Patent number 8,945,268
- Issue date Feb 3, 2015
- Donaldson Company, Inc.
- Benny Kevin Nelson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Seal arrangement for filter element; filter element assembly; and,...
- Patent number 8,409,316
- Issue date Apr 2, 2013
- Donaldson Company, Inc.
- Benny Kevin Nelson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
SEAL ARRANGEMENT FOR FILTER ELEMENT; FILTER ELEMENT ASSEMBLY; AND,...
- Publication number 20200222846
- Publication date Jul 16, 2020
- Donaldson Company, Inc.
- Benny Kevin Nelson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SEAL ARRANGEMENT FOR FILTER ELEMENT; FILTER ELEMENT ASSEMBLY; AND,...
- Publication number 20150343364
- Publication date Dec 3, 2015
- Donaldson Company, Inc.
- Benny Kevin Nelson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SEAL ARRANGEMENT FOR FILTER ELEMENT; FILTER ELEMENT ASSEMBLY; AND,...
- Publication number 20140033667
- Publication date Feb 6, 2014
- Donaldson Company, Inc.
- Benny Kevin Nelson
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL